Single and double types come in 9SMn Pb36k steel. Outside diameters range from 20 to 95 mm. While lengths vary from 88 to 290 m. Options include smaller bores, keyways, square and hexagon bores, ...

Early ideas of universal joints (or U-joints) have dated back thousands of years and seem to originate from multiple sources. However, about a century ago, a young engineering graduate, Clarence W.